Finding the Fourth Proportional to 12,658.32, 17,468.84 and 7,069.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,658.32 : 17,468.84 = 7,069.20 : x
2. Step 2: Convert to fraction form
   12,658.32/17,468.84 = 7,069.20/x
3. Step 3: Cross multiply
   12,658.32x = 17,468.84 × 7,069.20
4. Step 4: Simplify right side
   12,658.32x = 123,490,723.73
5. Step 5: Solve for x
   x = 123,490,723.73/12,658.32
6. Step 6: Final answer
   x = 9,755.70